Absorber for ammonia-absorption refrigerating or like machines.



' N0.'729,s9s. PATBNTED MAY 26, 1903. A. OSENBRUGK, ABSORBER FOR AMMONIA ABSORPTION RBFRIGERATING 0R LIKE MACHINES.

/APPLIOATION 211.111) AUG. 16, 1902. v no MODEL. 4 2 snsn'rswnmm 1.

W v I A W/fli'flfemirabi m: ungms Finns o0. mom-urns" msumovon, o. c.

PATBNTED MAY 26,1903.

A. OSENBRUGK. ABSORBER FQR AMMONIA ABSORPTION RB'PRIGERATING 0R LIKE MAOHiNBs.

APPLICATION FILED AUG. 16, 1902.

2 SHEBTSSHEET 2.

Nb MODEL.

Zflzizaaa Mafar Q7676 rab? 7 0.. wsmuuwn n c driven out therefrom by exhaust-steam UNITED STATES Patented May 26, 1903.

PATENT OFFICE.

AUGUST OSENBRUCK, OF BREMEN, GERMANY.

SPECIFICATION formingpart of Letters Patent No. 729,398, dated May 26, 1903.

Application filed August 16,1902. Serial No. 119,887. (No model.)

To all whom it may concern:

Be it known that I, AUGUST OsENBRtioK, a subject of the Emperor of Germany, residing at Bremen, Germany, have invented certain new and useful Improvements in Absorbers for Ammonia-Absorption Refrigerating or Like Machines, of which the following is a specification.

This invention relates to an improved absorber for am monia-absorp'tion refrigerating and like machines, and has for its object the construction of an absorber in'which such highly-saturated solutions of ammonia can be made that liquid anhydrous ammonia can be of 100 centigrade. r

Referring to the drawings, Figure 1 represents a vertical section of my improved ab-.

sorber. Fig. 2 represents avertical section of the same, showing a modification of the arrangement of the cooling-tubes and also a modification of the spiral strips soldered to the cooling-tubes; and Fig. 3 shows a verti cal section through one of the supportingframes for the cooling-tubes when the modification shown in Fig. 2 is used. The absorber consists of a welded wrought iron casing,with flanges Welded thereto and a cast or wrought-iron base and cover. The gaseous ammonia from theyaporizer and the exhausted ammonia solution fromv the distilling-boiler unite in the pipe A below the base. At its lower part the absorber is surrounded by two cooling-jackets O and O. The coolingwater enters the top of the inner jacket 0 through a pipe D, is conducted downward therein by a serpentine or spiral partition, rises in the outer jacket 0', being similarly guided by a serpentine partition, and passes at the top out of the outer jacket through a pipe E. Through the pipe E the coolingwater passes into the serpentine pipe F and moves downward through this, after which it leaves the absorber through a pipe G.

In the constructional form of myimproved absorber shown in Fig. 1 the cooling-pipe F is soldered to an inner tinned sheet-metal casing L, and spiral strips P- of sheet-metal are soldered to the outside of the said pipe, these strips widening out conically downward. This form of the cooling tubes presents the advantage that the outer parts of the absorption liquid can everywhere come the inside of the cooling-tube F. Each spiral tube is provided with three or more supports,

(the tube-frames Q, Fig. 3.) These frames are made of iron strip and are gripped over by the sheet-metal stripsP and made fluidtight by soldering.

What I claimis- 1. An absorber for ammonia-absorption machines, comprising an annular receptacle, an inlet and an outlet to said annular receptacle, cooling-jackets on the lower parts of the exterior of theinner and outer walls of said annular receptacle, a serpentine coil in the interior of said annular receptacle, and fluid connections uniting said jackets and said serpentine coil into a continuous series, substantially as described.

2. An absorber for ammonia-absorption machines, comprising an annular receptacle, an

inlet and an outlet to said annular receptacle, jackets on the lower parts of the exterior of the inner and outer Wallsof said annular receptacle, a serpentine coil in the interior of said annular receptacle, a downwardly and laterally extending sheet-metal strip on said serpentine coil, and fluid connections uniting said jackets and said serpentine coil into a continuous series, substantially as described.

3. An absorber for ammonia-absorption machines, comprising an annular receptacle, an inlet and an outlet to said annular receptacle, jackets on the lower parts of the exteriorof the inner and. outer walls of said annular receptacle, spiral partitions in said jackets, a serpentine coil in the interior of said annularreoeptacle, a downwardly and laterally extending sheet-metal strip on said serpentine coil, and fluid connections unitingsaid jackets and said serpentine coilinto a continuous series, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

. AUGUST OSENBRUOK. Witnesses:

L. OTTEN, I. MECKE. 

